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V HEEL MAKING MACHINE.

No. 440,342. Patented Now. 11, 1890.

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A. ANDRES. HEEL MAKING MACHINE. No. 440,342. Patented Nov. 11, 1890.

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Patented Nov. 11, I890.

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UNITED STATES ALBERT ANDRES, OF NIEDER VVALLUF, GERMANY.

HEEL-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 440,342, dated November 11, 1890.

Application filed August 24, 1889- Serial No. 321,822. (No model.)

To aZZ whom it may concern:

Be it known that I, ALBERT ANDRES, foreman, a subject of the King of Prussia and Emperor of Germany, and a resident of Nieder lValluf, in the Kingdom of Prussia, German lmpire, have invented certain new and useful Improvements in Machines for Manufacturing and Affixing the Heels to Boots or Shoes, of which the following is an exact description.

My invention relates to a machine by means of which the various layers of leather forming the heel of the boot or shoe, after having been first stamped out and at the same time bored by the method usually in practice, are nailed together and to the shoe, then the covering or bottom layer of the heel separately nailed on, and the straight side of the heel then out even.

In order to make my invention more clear, I refer to the accompanying drawings, which form part of this specification, and in which similar letters and figures denote similar parts throughout the several views.

Figure 1 is a sectional elevation of the machine along the line a 9 in Fig. 2. Fig. 2 is a plan of the machine with the upper part cut away along line 19 in Fig. 4. Fig. 3 is a sectional plan of the machine along line y 8 in Fig. 4. Fig. 4 is a side elevation of the Fig. 4* shows the shape of the groove in hammer L. Fig. 5 is a plan of the holding-block R R and table A. Fig. 6 is a section-on line a fi' in Fig. 5. Fig. 7 is aplan of the nailing-block Z. Fig. 8 shows a section through a layer of leather out out and punched. Fig. 9 shows a plan of Fig.8. Fig. 10 shows a section of the covering or bottom layer for the heel. Fig. 11 is a plan of the same. Fig. 12 shows a vertical section through the block for fixing the last layer to the heel. Fig. 13 shows a plan of this block. Fig. 14 shows a section through the knife-block for shaving off the heel smooth. Fig. 15 showsa plan of the same.

The heels are made in the usual manner by layers of leather stamped out and fixed to gether by means of brads. In my arrangement the layers are punched at the same time as they are stamped with the holes for the brads, and are punched in such a manher that the brads are bent in being driven into the form of the heel, as will be seen from Fig. 6. This is eifected by the formation of the various dies, which, however, form no part of my present invention. The layers of leather forming the heel are now, held to gether by means of apiece of string or a couple of brads driven through them. The heel is now ready for the machine.

The machine is constructed in the following manner: A is a circular table, which re volves round its center bolt B. In the table A are three circular openings 1 2 3, in which three dies are placed. These dies are shown in section in Figs. 6, 12, and 14, and serve, first, to drive the brads through the heel, holding the layers forming the same together and at the same time onto the upper part of the shoe, Fig. 6 5 second, to fix the covering or bottom layer onto the heel, Fig. 12; third, to cut the straight side of the heel smooth, Fig. 14. The circular table A revolves on the frame G of the machine.

In the front part of the machine is a vertical cylindrical guide, in which the piston or hammer L moves. This hammer L is driven by the crank J 011 the end of shaft H, and shaft II is driven in its turn by means of gearing-wheels G and E and sheave-pulleys D D from a main driving-shaft. The roller K of crank J works in a peculiarly-shaped groove in the lower part of the hammer L. (Shown in Fig. P.) On the upper part of hammer L is a dovetail projection, which, as to be seen in plan in Figs. 7, 13, and 15, is curved to a radius. drawn from the cent-er of the disk A. In its lowest position the top of hammer L is flush with the surface of the machine-table O.

Into one of the openings 1, 2, or 3 in disk A is placed the apparatus for nailing the heelpieces together and onto the boot, Fig. 6. This apparatus consists of a plate 4., having on its under side a groove, which when the disk A revolves dovetails over the projection on the hammer L. On its upper side it contains the studs 7c, which drive the brads into the heels. The plate 01 has, further, two bolts guided in the holes in the guide-block m, by means of which the studs 70 k and block 1, containing the brads which slide in guideblock on, are drawn downward after the brads have been driven into the heel. The brads are placed into the block Z by a special apparatus forming no part of this invention. The apparatus for fastening on the bottom layer to the heel placed into the second opening in disk A is in its main points the same as that just described, as will be seen from Fig. 12, with the addition that besides the brads it contains the layer of leather. The third apparatus consists of a knife for cutting or shaving off the front of the heel, and is so simple and clearly shown in Figs. 14 and 15 that further explanation is unnecessary. Dur ing this third operation the two blocks R R between which the heel-piece has up to the present been clamped by means of the two eccentrics T T and handle S, must be loosened, when projection n on disk A comes under'the nose 0 and pushes the two blocks apart, in order to make place for the knife W. This is done by hand, the handle S simply being thrown upward, Fig. 14:, when the shavings will fall through the slanting opening 70 Turning on its center Q is a disk Q, on'the upper surface of which is a cam Q (Shown in dotted lines in Fig. 2.) This disk Q is driven by means of bevel-Wheels J J from shaft H. The one end of bent lever P works in the cam Q of disk Q. The bent lever P itself is pivoted at P, and its long arm is connected by means of connecting rod 0 with the middle of lever-arm m", which is pivoted to the center bolt B. On the other end of lever-arm m is a ratchet n, which works in teeth on the under rim of the disk A, through a slit n in the table 0 of the machine. The cam Q is so formed that the disk A shall make one revolution to each of three revolutions of the disk Q, and, further, that as each opening 1, 2, or 3 in disk A comes over the piston or hammer L the disk shall stand still long enough to allow the hammer to pass into the opening and drive the brads into the heel and pass down again. As will be clearly seen from the drawings, the disk A will remain still so long as the roller on the end of bent lever P remains in the concentric part of the cam Q The boot or shoe is held in position during the process of affixing the heel to the same by means of the dolly '0, fixed at its upper end to the frame W. The frame W is vertically movable by means of its rods 00 00, running in the guides U Uiand is pressed down tightly onto the shoe during the operation by the following mechanism:

On the shaft H is a pinion h, Fig. 3. which gears into a driving-wheel g on the shaft f, running in bearings in the machine-frame, and this shaft f carries a cam e, which works the arm 19 of the bent lever 19 a by means of the roller on the end of the same. Bent lever p z is pivoted to. the frame of the machine at 10' and its other arm 2 is pivoted to leverarm 2 and at the same time to the connecting-rod y. Lever arm .2 is pivoted at. its lower end to the guide-rod mot the frame' W. The double lever z e is connected with the two lever-arms z 2 by means of the rod y, and

these two lever-arms are pivoted together to rod y at y. The upper end of the upper arm 2 is pivoted to the machine-frame, and the lower end of the lower arm .2 t0 the guide-rod a: of frame W. The shaft f is so geared to shaft H that during the time while the disk at is making one revolutionthat is to say, while the three operations necessary for fixing the heellayers together and to the shoe, then fixing the bottom layer to the heel, and, thirdly, shaving the inside of the heel smooth, are taking placethe concentric part of the came presses the armp of bent lever 19 z upward, Fig. at, and the levers 2 a2 2 having their upper ends 19' 19 fixed, press with their lower ends the guide-rodswccdownward, thus holdingthe shoe firmly inits place. When the operations are finished, the roller on end of armp comes into the notch in the cam e and the guide-rods of frame W are released, when the frame W may be turned outward by means of handle W, as shown in dotted lines in Fig. 1, and the shoe removed.

The working of the machine is the following: The layers of leather forming the heel are bound together and placed between the two blocks R R The upper part 'of the shoe is then placed on the dolly c and held in its proper position over the heel. The machine is now set in motion. The cam e at first comes under the bent lever 10 z and presses it upward, whereby by means of levers z z, z, 2 and y the dolly o is jammed tightly down onto the shoe. The disk A has now revolved so far that the apparatus 1 is brought over and dovetailed into the hammer L. This rises by means of crank J and drives the brads into the heel, nailing the layers of the same together and nailing the heel onto the shoe. The hammer then sinks again. The

disk A now revolves farther and opening 2 isbrought over hammer L. Hammer L rises again and the bottom layer is fastened to the heel in the manner described. It then sinks again and apparatus 3 comes over the hammer. At this moment the blocks R R are released by throwing up handle S, as described, and by projection 71. coming under noseo to allow room for knife 70 which faces up one side of the heel. By this time the notch in cam c has come under arm 19 of bent lever 19 z and the same sinks, releasing the dolly 'v, and the shoe, with blocks R R may be removed from the machine. The blocks are then removed from the heel.

Having thus fully described and ascertained the nature of my saidinvention,whatlclaim, and desire to secure be Letters Patent of the United States, is

' 1. In a heel-attaching machine, in combination with the nailing and breasting devices thereof, the table A, having three cylindrical openings 1, 2, and 3, and having a projection 17, on its rim and teeth on its under edge, pivot B, around which the table is adapted to revolve, and mechanism to revolve the same, consisting of ratchet a and arm m and connections between said arm and the drivingshaft, as described.

2. In a heel-attaching machine, in combination with the nailing and breasting devices thereof, the table A and mechanism to revolve the same, consisting of arm on", ratchet 01, attached to end of arm m pivot B, around which the arm m is adapted to revolve, bent lever P, pivot P, around which lever P is adapted to oscillate, connecting-piece Q, attached to end of lever P and adapted to transmit the revolving motion from lever P to arm m", disk Q, having an eccentric-groove Q adapted to move lever P, pivot Q, around which disk Q is adapted to revolve, and connections between said disk and the main driving-shaft, in the manner described.

3. In a heel-attaching machine, in combination with the nailing and breasting devices thereof, the table A and hammer L, having dovetail projection on its upper end, said projection being radial with the center point of table A and adapted to slide into radial dovetail grooves of the nailing and breasting devices contained in table'A at each revolution of the same, in the manner as described.

4. In a heel-attaching machine, in combination with the nailing and breasting devices thereof, table A, hammer L, and mechanism for operating the same, consisting of frame W, bearingthe handle W, and the dolly 'u, attached to the midst of the frame W and adapted to hold the shoe in place, the guides U U and the guide-rods m 00, movably fixed in the guides U U and adapted to allow a vertical motion of frame W and dolly v, inward proj ections of the lower ends of the guides U U adapted to guide the pieces R and R forming the shoe-block, the eccentrics T T and handle S, mounted on block R and adapted horizontally to move the said shoe-block, the projection n on table A, and nose 0 on piece R, adapted to open the block-shoe for the brcasting of the heel, in the manner as described.

5. In a heel-attaching machine, in combination with the nailing and breasting devices thereof, table A, hammer L, dolly v, and mechanism to move the latter, consisting of frame W, bearing the handle W, and the dolly 4;, attached to the midst of the frame and adapt ed to hold the shoe in place, the guides U U the guide-rods wax, movably fixed in the guides U U and adapted to allow a vertical motion of the dolly v, the levers z, z z, 52, and 11 adapted to raise the guide-rods :0 0c, the cam e, mounted on shaft f, the lever 19, moved by the said cam e and adapted to transmit this motion to the intermediate lever-connections z z z 2' y, and the gear-wheels h and g, geared to driving-shaft H and adapted to revolve cam e, in the manner as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

ALBERT ANDRES.

Witnesses;

FRANZ Knos'r, MICHAEL KRUSBURG. 

